finding the volume of cube is equal to 2 × 3 × 4
so
v of cubes is 24
now
twice of it is 2 ×24
48
Factorise the following.
Answer:
m^2 -121
m^2 - 11^2
( m - 11 ) ( m + 11 )
6x^2 - 54
6 ( x^2 - 9 )
6 ( x - 3 ) (x + 3 )
Answer:
m^2-121
m^2-11^2
(m-11)(m+11)
Step-by-step explanation:
6×^2-54
6(×2^-9)
6(×-3)(×+3)
Find the value of x
Answer:
it's 60
Step-by-step explanation:
I don't understand this please help!
simplify fully (9(x+7))÷(3(x-1))
Answer:
3x + 60
Step-by-step explanation:
9(x + 7) ÷ 3(x - 1) =
9x + 63 ÷ 3x - 3 =
9x ÷ 3x + 63 - 3 =
3x + 60
Note: For the third equation which is 9x ÷ 3x and etc, you have to put alphabets and numbers at one side seperately to be able to simplify easily.
Consider the following question.
"Do you watch television every day?"
Which of the following statements BEST explains why the question is NOT a statistical question?
A The question does not anticipate variability in the answers
B The question results in a single absolute answer.
C The question may be answered differently by different people.
D. The question does not require an explanation
Answer:
a
Step-by-step explanation:
Answer:
C, the only info for the question is about yourself which is a survery question
Step-by-step explanation:
A snail travels at a speed of 12 feet/hour. How long will it take the snail to travel 1 foot?
Answer:
2 hours
Step-by-step explanation:
I WILL GIVE BRAINLIST TO THE RIGHT ANSWER!!!!! Please help me! I would give more points but this is all I have:(
its a trust me on this one ok
I hope you see it plz 20 minutes left i need answers yall help me plz
Answer:
-6,-2
Step-by-step explanation:
you just have to look i think its right
If 5y+4y+y is completely simplified by combining like terms, what is the result?
Answer:
10y
Step-by-step explanation:
Answer:
10 y..
..
.
.
.
.
.
.
.
.
.
.
..
.
use trig identities to calculate sin(2x) and cos(2x) based on given information tanx=2 and cosx>0
Answer:
Find sin 2x, knowing tan x = -2, and cos x > 0
Ans:
sin
2
x
=
4
5
Explanation:
3 Trig identities to be used:
1
+
tan
2
x
=
1
cos
2
x
(1)
sin
2
x
+
cos
2
x
=
1
(2)
sin
2
x
=
2
sin
x
.
cos
x
(3)
Given tan x = -2. First find cos x and sin x
(1) -->
1
+
4
=
1
cos
2
x
-->
cos
2
x
=
1
5
-->
cos
x
=
±
1
√
5
.
Since cos x > 0, then
cos
x
=
1
√
5
.
(2) -->
sin
2
x
=
1
−
cos
2
x
=
1
−
1
5
=
4
5
-->
sin
x
=
±
2
√
5
.
Since cos x > 0 then
sin
x
=
2
√
5
.
(3) -->
sin
2
x
=
2
sin
x
.
cos
x
=
2
(
1
√
5
)
(
2
√
5
)
=
4
5
Answer link
which number below has the least value?
A 7 1/4 B 7 1/5 C 7 1/2 D 7 1/10 E 7 1/20
Answer:
E: 7 1/20
Step-by-step explanation:
the greater the denominator the smaller the fraction so 1/20 is smaller than 1/4
Factorise the expressions.
mn + m + n + 1
m(n +1) + (n+1)
( n + 1) ( m + 1)
x (y+ z) -5 (y + z)
( y + z ) ( x- 5 )
Tammy has begun an exercise program. She worked out five days the first week for 28 minutes, 32 minutes, 21 minutes, 38 minutes and 42 minutes. Round each amount to the nearest 10 to find an estimate of the total number of minutes Tammy exercised during the week.
A. 110 min.
B. 140 min.
C. 160 min.
D. 190 min.
Answer:
The correct answer is C. 160 minutes.
Step-by-step explanation:
Since Tammy has begun an exercise program, and she worked out five days the first week for 28 minutes, 32 minutes, 21 minutes, 38 minutes and 42 minutes, to find an estimate of the total number of minutes Tammy exercised during the week, rounding each figure to the nearest tenth, the following calculation must be performed:
28 + 32 + 21 + 38 + 42 = X
30 + 30 + 20 + 40 + 40 = X
160 = X
Thus, the estimated time of exercise that Tammy performed was 160 minutes.
Please please help please please. Answer as soon as possible please and thank you. Will give brainly
An Olympic swimmer
competes in the same events during each long course swim season. A swimmer currently
competing on the United States Women's Olympic Swim Team, will swim her best events each year with the hope of
continuous Improvement. The following table is a record of the swimmer's best times for the 100 meter freestyle event,
measured in long course meters.
Long Course Recorded
Season
Best Time
2005 2:33.42
2006 2:24.81
2007 2:10.93
2008
2:03.45
2009
1:58.67
2010
1:59.17
2011
1:55.06
2012
1:55.82
2013
1:54.81
2014
2:00.03
1. Create a scatter plot representing the data displayed in the table.
2. Use the scatter plot to determine whether there is positive, negative or no correlation between the data values.
3. Write a conclusion statement regarding the data and the rate of change present in the line of best fit. Do not actually
calculate the slope or write the equation for the line of best fit.
Can someone please give me the answer
Answer:
Step-by-step explanation:
The area is the height times the average of the parallel bases.
A=h(b1+b2)/2
A=4(2+4)/2
A=4(6)/2
A=24/2
A=12
The area is 12 square units.
One grocery clerk can stock a shelf in 25 min. A second clerk requires 45 min to stock the same shelf. How long would it take to stock the shelf if the two clerks worked together?
Answer:
clerk A and clerk B can simultaneously stock a shelf in 180/13 minutes
Step-by-step explanation:
Let the first clerk be A and the second clerk be B
A can stock a shelf in 20 min
B can stock a shelf in 45 min
Consider the complete work to be W
A’s rate of stocking = per minute
B’s rate of stocking = per minute
When, A and B work simultaneously, rate of work done =
Total work done simulatenously = 180/13
Therefore, clerk A and clerk B can simultaneously stock a shelf in 180/13 minutes
Answer:
Step-by-step explanation:
The rate of each clerk is 1/25 and 1/45 respectively so together they can stock the shelf
t/25+t/45=1 (the least common multiple of 25 and 45 is 225)
t/25(9/9)+t/45(5/5)=1
(9t+5t)/225=1
9t+5t=225
14t=225
t=225/14 min
t=16 minutes (rounded to nearest minute)
( or 16 minutes and about four seconds :) )
Ellen ordered some books online. Each book cost $13 and there is a $20 shipping fee.
Which expression represents the situation?
A 7n
B) 13n + 20
C) 33n
D) 20n + 13
Answer:
Step-by-step explanation:
the correct expression is B
13*n+20
where n represents the number of the books
A high school drama department sold 238 tickets for their performance.
o An adult ticket cost $6.75.
o A student ticket cost $3.50.
o The high school drama department collected $1,252.25 in ticket sales.
How many student tickets were sold?
Answer:
$6.75 + $3.50 = X
X ÷ $1,252.25
Step-by-step explanation:
$6.75 + $3.50 = $10.25
$10.25 ÷ $1,252.25 = 0.00818526652
Suppose you are to select a password of size 4. The first character should be any lowercase letter or a digit, while the second should be a non-zero digit. The third should be any lower case letter, and the fourth should be any lowercase letter, which is different from the third. b. Consider a group of ten students, and six of them are boys. A committee of 3 students is expected to select from the above group. How many committees can you select with at least two girls
First question seems incomplete :
Answer:
40 ways
Step-by-step explanation:
Question B:
Number of boys = 6
Number of girls = 4
Number of people in committee = 3
Number of ways of selecting committee with atleast 2 girls :
We either have :
(2 girls 1 boy) or (3girls 0 boy)
(4C2 * 6C1) + (4C3 * 6C0)
nCr = n! ÷ (n-r)!r!
4C2 = 4! ÷ 2!2! = 6
6C1 = 6! ÷ 5!1! = 6
4C3 = 4! ÷ 1!3! = 4
6C0 = 6! ÷ 6!0! = 1
(6 * 6) + (4 * 1)
36 + 4
= 40 ways
Question 5 please and thank you
Answer:
Read explanation
Step-by-step explanation:
Whatever is underlined copy in:
58+3x-13=90, so 3x + 45 = 90
Then 3x=45 and x =15
m<MNQ = 3x -13 = 3(15)-13
= 45-13
=32
The sum of two numbers is 3472.
one of the numbers is 1968.
find the other number
Answer:
1504
Step-by-step explanation:
3472-1968=1504
CHECK
1968+1504=3472
Please helppp, worth 35!!!
Answer:
9.42
Step-by-step explanation:
Hey There!
The first step of this problem is to find the formula for arc length
[tex]arc-length=2\pi r(\frac{0}{360} )[/tex]
r=raduis
0 = angle
now we just plug in the values
[tex]arc-length=2\pi 10\frac{54}{360} \\2\pi =6.283185307\\6.283185307x10=62.83185307\\62.83185307\frac{54}{360}=9.424777961[/tex]
so the arc length equals 9.424777961
the last step is to round to the nearest hundreth
so your final answer is 9.42
Can you help me here is the inage
Answer:
60x=y
Step-by-step explanation:
math
Please help will give BRAINLIEST
Answer:
2nd table
Step-by-step explanation:
If the spinner is spun one time, what is the probability of the arrow NOT landing on a section labeled with an even number?
? × 1/9 =90 what is the missing number in the equation
Answer:
810 x 1/9 = 90
?= 810
Step-by-step explanation:
Answer:
the answer is 360
Step-by-step explanation:
1. Simplify the 1/4
2 write the whole as a fraction using 4 as the denominator :
90 90 • 4
90 = —— = ——————
1 4
3. Do the multiplication 90x 4 = 360
x- 360
----------
4
then do 0 * 4 to get the denominator
Wendy can solve a brain teaser in 15 minutes. When she works with Arby, they can solve in 5 minutes. Which statement is true
Answer:
Wheres the statements?
Step-by-step explanation:
7. Are the two triangles similar? How do you know?
Which statement best describes the effect on a image when it is reflected over the x axis
Answer:
Vertical flip
Help! 20 points!
Explain how you can tell if 3 side lengths will form a triangle if you know each length.
You can tell if 3 side lengths will form a triangle if you know each length by adding all 3 side lengths together. If they equal a total of 180 degrees then it is a triangle.
